Re: [rtcweb] Review of draft-ietf-rtcweb-rtp-usage

Bernard Aboba <bernard.aboba@gmail.com> Thu, 08 May 2014 12:43 UTC

Return-Path: <bernard.aboba@gmail.com>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F096E1A0549 for <rtcweb@ietfa.amsl.com>; Thu, 8 May 2014 05:43:13 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2
X-Spam-Level:
X-Spam-Status: No, score=-2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Dk2XAq1PQ9Xk for <rtcweb@ietfa.amsl.com>; Thu, 8 May 2014 05:43:12 -0700 (PDT)
Received: from mail-pd0-x22f.google.com (mail-pd0-x22f.google.com [IPv6:2607:f8b0:400e:c02::22f]) by ietfa.amsl.com (Postfix) with ESMTP id 1C9EA1A0515 for <rtcweb@ietf.org>; Thu, 8 May 2014 05:43:11 -0700 (PDT)
Received: by mail-pd0-f175.google.com with SMTP id x10so2281221pdj.20 for <rtcweb@ietf.org>; Thu, 08 May 2014 05:43:06 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=references:mime-version:in-reply-to:content-type :content-transfer-encoding:message-id:cc:from:subject:date:to; bh=jOk/xJs6sdEWWW+z/xM0SR2JWU4/pMB6/yZEE8SnUk0=; b=eYoI8nI/L/LQVik5WKlpxwc2ydbHuzd13dK9+haMIC4Bn80pZ/ktU0l2KTIsL6NcfQ xOy2Ndy3FveEwQvwW2F2BppB6Ob1UoYhPamoVTj0yHFH31Af1B5NDp80EJmpJywnYPIa /+iQJvN3Yjzmllhe5tAySJomL50UDLQdjceBwnrXgxdVr4TEJnhJCJyO56ZRefY+nL4C i3X8eWQfl3mqmOrPOpzW0B7TFZufi/9JjtrNumAKfVWYfqDl0YJZCdCq/alSKUUz1ZdT x0yhQ42klDBmRr0JD21CiqV0fJGqvpQI3kidJefMmd7MWpm91et2V2Wp22SXojjcN2rU 7AYw==
X-Received: by 10.66.147.130 with SMTP id tk2mr7095750pab.125.1399552986652; Thu, 08 May 2014 05:43:06 -0700 (PDT)
Received: from [192.168.1.108] (c-71-227-237-49.hsd1.wa.comcast.net. [71.227.237.49]) by mx.google.com with ESMTPSA id gg3sm1917519pbc.34.2014.05.08.05.43.03 for <multiple recipients> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 08 May 2014 05:43:03 -0700 (PDT)
References: <CAOW+2dsdEZyzs4Qu6+z55JcgiwaOWNQ0pHz=8-buuH1+3TJj8w@mail.gmail.com> <D3F43C35-2B37-4111-8803-46B6DED248E7@csperkins.org>
Mime-Version: 1.0 (1.0)
In-Reply-To: <D3F43C35-2B37-4111-8803-46B6DED248E7@csperkins.org>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Message-Id: <C9834672-6685-471C-83B9-B52CB8532573@gmail.com>
X-Mailer: iPad Mail (11D201)
From: Bernard Aboba <bernard.aboba@gmail.com>
Date: Thu, 08 May 2014 05:43:04 -0700
To: Colin Perkins <csp@csperkins.org>
Archived-At: http://mailarchive.ietf.org/arch/msg/rtcweb/PvchB9u6E9qugjnWaCbydvuVy-U
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Review of draft-ietf-rtcweb-rtp-usage
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb/>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 08 May 2014 12:43:14 -0000

> On May 8, 2014, at 3:45, Colin Perkins <csp@csperkins.org> wrote:
> 
> The fix here is to delete “In the absence of a concrete congestion control algorithm, all”, leaving the text as “WebRTC implementations MUST implement the RTP circuit breaker…” since as you note, we want the circuit breaker even if there is congestion control.

[BA] The question I have is whether this would be widely implemented. The Circuit Breaker algorithm pauses sessions, but has no mechanism to resume them, so it increases brittleness.